Doodle showing the diatom Plagiogramma Fossil Diatom Atlas
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Actinoptychus wittianus Truan y Luard & Witt (1888)
Actinoptychus maculatus (Grove & Sturt) Schmidt (1888)
Raphidodiscus marylandicus Christian (1887)
Actinoptychus wittianus Truan y Luard & Witt (1888)
Liradiscus bipolaris Lohman (1984)
Trilamina tripes (Brun) Witkowski, Sims, Strelnikova & Williams (2015)